Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Šauli, V."'
Autor:
Sauli, V.
Publikováno v:
Phys. Rev. D 102, 014049 (2020)
The pion transition form factor $G(q^2)$ is computed on the entire domain of spacelike and timelike momenta using a quantum field theory continuum approach. In analytical continuation of the function $G(Q^2)$ we utilized the Gauge Technique with the
Externí odkaz:
http://arxiv.org/abs/1905.07221
Autor:
Sauli, V.
Mechanism for generation of vector meson resonances is studied in the framework of QCD Dyson-Schwinger equations, which are defined and actually solved in Minkowski space. It is suggested that the timelike pion form factor is generated by the interfe
Externí odkaz:
http://arxiv.org/abs/1505.03778
Autor:
Sauli, V.
Propagators approximated by a meromorphic functions with complex conjugated poles are widely used to model infrared behavior of QCD Green's functions. In this paper, analytical solutions for two point correlator made out of functions with complex con
Externí odkaz:
http://arxiv.org/abs/1412.7863
Autor:
Sauli, V.
Publikováno v:
Int. Jour. of Theor. Phys. 54, pp 4131, 2015
We present the solution of Schwinger-Dyson and Bethe-Salpeter equation (BSE) for a light flawour non-singlet spinless meson in Minkowski space. The equations are solved in momentum space without the use of the auxiliary Euclidean space. To exhibit th
Externí odkaz:
http://arxiv.org/abs/1411.2568
Publikováno v:
Few Body Syst.48:41-52,2010
Without any analytical assumption we solve the ladder QED2+1 in Minkowski space. Obtained complex fermion propagator exhibits confinement in the sense that it has no pole. Further, we transform Greens functions to the Temporal Euclidean space, wherei
Externí odkaz:
http://arxiv.org/abs/1006.0612
Publikováno v:
PoS QCD-TNT09:040,2009
Novel solutions of Minkowski QED2+1 and large $N_f$ QCD Schwinger-Dyson equations will be presented and discussed. The resultant propagators of confined degrees of freedom will be shown.
Comment: 9pages in revtex4, presented at QCD TNT, Trento 7
Comment: 9pages in revtex4, presented at QCD TNT, Trento 7
Externí odkaz:
http://arxiv.org/abs/0911.0275
Autor:
Sauli, V.
The propagator of confined quarks is calculated for timelike momenta by transforming Minkowski Greens functions to the Temporal Euclidean space. Based on the framework of the Schwinger-Dyson equations the QCD quark propagator is obtained in two appro
Externí odkaz:
http://arxiv.org/abs/0902.1195
Without any analytical assumption we solve the ladder QED2+1 in Minkowski space. Further, we transform Greens functions to the Temporal Euclidean space, wherein we show that in the special case of ladder QED2+1 the solution is fully equivalent to the
Externí odkaz:
http://arxiv.org/abs/0901.0110
Autor:
Sauli, V.
Publikováno v:
AIPConf.Proc.1030:274-279,2008
Using the formalism of Bethe-Salpeter equation (BSE) the Higgsonium bound state is studied. The condition for formation of Higgsonium bound states are discussed in SM and in the simple extension of.
Comment: 7 pages, talk presented at SCADRON 70
Comment: 7 pages, talk presented at SCADRON 70
Externí odkaz:
http://arxiv.org/abs/0806.3454
Publikováno v:
J.Phys.G36:035002,2009
We present an elementary nonperturbative method to obtain Green's functions (GFs) for timelike momenta. We assume there are no singularities in the first and third quadrants of the complex plane of space momentum components and perform a 3d analogue
Externí odkaz:
http://arxiv.org/abs/0806.2817